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Bovine Viral Diarrhea Virus infection affects the expression of proteins related to professional antigen presentation in bovine monocytes

Authors
Journal
Biochimica et Biophysica Acta (BBA) - Proteins and Proteomics
1570-9639
Publisher
Elsevier
Publication Date
Volume
1794
Issue
1
Identifiers
DOI: 10.1016/j.bbapap.2008.09.005
Keywords
  • Apc
  • Monocyte
  • Bvdv
  • Ddf–Mudpit
  • 2D-Lc Esi Ms2
  • Xcorr
  • In Silico
Disciplines
  • Biology

Abstract

Abstract The complete annotation of the cattle genome allows reliable protein identification by tandem mass spectrometry (MS 2) and greatly facilitates proteomics. Previously, we reported that differential detergent fractionation (DDF) analysis of bovine monocytes reveals proteins related to antigen pattern recognition, uptake and presentation to immunocompetent lymphocytes. Here we have identified 47 bovine proteins, involved in immune function of professional antigen-presenting cells (APC) that have been significantly altered after cytopathic (cp) Bovine Viral Diarrhea Virus (BVDV) infection. In particular, proteins related to immune responses such as cell adhesion, apoptosis, antigen uptake, processing and presentation, acute phase response proteins, MHC class I- and II-related proteins and other molecules involved in immune function of professional antigen presentation have been significantly altered after BVDV infection. Our data suggest that cp BVDV, while promoting monocyte activation and differentiation, is inhibiting their antigen presentation to immunocompetent T cells, thus resulting in the uncontrolled inflammation mediated by activated macrophages, enhanced viral spread, and impaired anti-viral defense mechanisms in the host.

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